Log-bunk.



E. B. SHIELDS.

LOG BUNK.

APPLICATION FILED JAN. 9, 1913.

Patented May 6, 191;

UNITED S ES PATENT i EDWARD .B.' SHIELDS, OF'TACoMA. wasmno'ron,ASSIGNOB; To URTL -nAoK Loo BUNK ANDCAR STAKE COMPANY, OFTACOMA,-WASHINGTON, .A coRPomTIoN or WASHINGTON.

"Loo-BUNK i Originatappltcationflled as 25', 1912, Serial no. 686,006.'mviaeasna this application filed Ienuary 9,- 191s, serialnoaulm'z g 7To all ll'hom it may concern:

. Be it. knownithat- I; Eow'ano "B. Shrimps, acitizen oft-he UnitedStates. residing at "laconnnin the conntygo'f Pierce and .State of;ashin; ton, have-invented a new and useful IJOgi Bunl 0f whichthe'following is a specification,

This invention relates to bunks 1 adapted to hemounted on a. fiat carnndon which logs may be piled, and hasfor its objects tovprovide a bunkwhich is very strong and. stiff ,in for'mj' and {tlnis capable ofstanding: the strains developed when -\-'erf large logsare rolledthereon inloading the car: which 16' reinforces the carbodydistributing; thestralns aeross the entire-width of the cal-{- which hasmeans zfor'retaining and guiding 'areleasable stake ateach; ;end. beyondthe side.- sills of the ear; thusimaking the fn'lli w i dth 'of the cara v-ailable for logs; which preyents the] accumulationo't dirt. bark,

snow or icdin any way which wonld -'interfere .witlnthe'..free actionof-the stakes: and

. which protectsthe car from being damaged zsbyn log beingnnlonfled.

c Another obgeet of 'my invention is to pl'm' vide improved means ofmounting the bunk onthe car whereby the-sills of the car ar e. tiedtogether across the car and-are kept 80 from spreading under the heavyloadsand the strains across the car are carried tothe.

sills; and whereby thebnnk is secured to the sills without making anyholes therein which would weaken thern. c

36 I attain these and other-objects by the devices, forms-andarrangements illustrated in the accompanying drawings, in which- Figure1 is a perspective iew of the bunk showing a-portion of one side-sillunder one end thereof; Fig. 2 is a vertical longitudinal section of oneend of the bunk; 3 is a side elevation thereof; Fig. 4 is a planthereof; andFig; 5 is a cross-section thereof. V Similar numerals ofreference refer to similar p'arts throughout'the several views. The bankillustrated in'the drawings and 'described. herein is the same as thatillustrated in my applicationfor'Let-ters Patent 150 .for car stakes,Serial No. 686,006.1ltarch 25,

1912 and thisapplication is divided out from the sold application.

The main-bod of the bunk 1 is formedas shown In sect1'on. in Fig; 5 ofan-inever not completed to the, crown-oft] vcrted-U or high arc h shape;haiing fsnbstantially; parallel -and vertical sides ,2;-

- joined-ontop by a substantiallys'einicircula r--.

'tioned'carstake with the radiusarnithereof; pair, of vertical flanges 5extendjdown .frmn eachsnle of said slot,pnefflange hav ing' its outeredgeverticirl and ex tndind closes the. end of the bnnlq'theoth beingsimilar except that amount e tending-slmnlder 7 1s forlnedjthered The--said flanges 5 form the gnideit all said stake. The. end'walttifekteiids jorily from each flange '5 to the walls2 andan-chi ofthe bunk but not between the two-flanges; 3 'lhetwo'flanges 5 extenddown b iiloii lsoz the level of the base of the bunk so as to form abracket to engage the out-er side of the side sill 8 of the'car, and arejoined together below the top of the sill 8 by a web 9, thus forming avery strong, and stiff hearing plate or bracket hereby the inward sidepressures on the bunk are transferred to the sill and whereby the twoside sills are tied tdgethenand thus reinforced. Holes 10:1ie' y made inthe end walls (3, through which the bar of the stake on the opposite:side passes as described in the above mentioned application. A pailko'fbrackets 11 extend out from the lower edge of the side walls-2 near eachend of the bunk, being; adapted to supportthe end of the releasing;lever of said stake bar as described in said applicat-ion. The-bunk issupported by the lower edges of the side walls 2, having bearing flanges100.

12 and 13 extending ,ontfrmn the said walls at the points-where-thebeargnrthe side or intermediate sills of the car respectively. Oneendbcaring flange 12 extends a short Y distance out from the sill whilethe one" on 1.05. the other side of the hunk extends a simil'ardistance-inward. These two extensions haye' .bplt. holes therethrough.-A pair of bolts 14 pass through the said holes and through: holes inthe ends of a clamp plate 15 which.

engages thelower diagonally. beneath lies'against the inner side ofthesill while. the other similarly engages the outer side side of thesill 8, lying thereof. The bunk is therefore held on the sill bythe'bolts without making'any holes in the sills or in anyway weakeningthem. It will therefore be seen that the vertical depth of the wallsandarch give this'bunk great strength; The -weight and strains from thelog, which lies directly. upon the arch of. the bunk, are transmittedto'the car through the arched portion and separated walls of the bunkwhich distribute the strains evenly across the car. "The arch sinksslightly into'th'e bark of the log thus holdin 'itfrom a toofreemovement end wise t ereon.- The fact .that'-1the'- bas'e is open betweenthe .separated vertical walls prevents the accumulation of'r'efuse'which I might interfere with the free operation and control of thestakes," and this effect is'fu'rther enhanced by th'e'fact that. the topis entirely closed against "such refuse except at the end slots whichare occupied by-the the bunks themselves extend out beyond thef'sides ofthe car is of great practical. value since the sides are thus protectedfrom damage from thelogs' when they are beingunloaded and further itgives the free use of the entire width of the car for logs. The novelmethod of attachingthe bunk on the car is also of value as it.reinforces the car without'=weakening the sills by bolt holes. The bunkis lpreferably made of cast steel being integra throughout.

Having claim is:'

' 1. A deviceof'the ing a bunk extending across the car and having asemicylindrical top adapted to receive logs.

2. A device. of the class described comprising a bunk extending acrossthe car and having a semicylindrical top adapted to receive the logs,and an open bottom whereby no dirt is retained therein.

3. A device of the class described com-.

prising a bunk extending across the car and having two vert cal parallelwalls, joined by a semicylindrical topmtegraltherewith and adapted toreceive the logs.

A. A device of the class described, comat their base, it. One of saidbolts 14' described my inventionwhat I class described comprisprisingabunk extending across the car and having two vertical parallel walls,separated but joined together by a semicylindrical top integraltherewith and adapted to receive the logs. 15. A device of the"cla ssdescribed, comprising a bunk extending across the car and having'asemicylindrical top adapted 'to receive the logs, and having extensionsto the ends of said arched top to protect the sides of the can;

6. A device of the class described, com prising a bunkextending acrossthe car and having a semicylindrical top adapted to re- 7 0 ceive thelogs, and having bifurcated extensions to .the ends. of said arched topto. receive a.log retaining means. 7. A device of the class described,com

prising ajbunk extending across the car and having two vertical parallelwalls coextensive with the'width of. the car,,joined by an archedtop,i-ntegral therewith and adapt-. edto receive the logs, saidarchedtop ing'bifurcated ends extending beyond the sides of the car to receivea log retaining means. I

'.8. A device of the class described, comprising a bunk extending acrossthe car and havin brackets extending downward from its ends and engagingthe sides of the car, imd an arched topadapted to -receive,the

9. A device of the. class described, comprising a bunk extending acrossthe car and having brackets extending downward from its ends andengaging the sides of the car, and having vertical parallel walls joinedby an arched topintegral therewith andadapted to receive the logs.

10. In a device of the class described, the combination with a bunkextending acrossthe car; flanges formed on the bottom of said bunk andextending outward there from, said flanges being-positioned to extend inpairs beyond the inner and outer sides of the side sills respectively;clamp plates'adapted to engage the lo'jversurfaces of the said sidesills and extending beyond them; and bolts passing through said clampplates and said flanges on each side of each of said side sills wherebysaid bunk is clamped to said sills.

- E. B. SHIELDS.

W'itnesses:

F. D. Marion, 0. R. JACKSON.

